2003

14. Feb. / Foundation of Yeowoonsansoft.

2004

10. Feb. / Development of the Yeowoonsansoft Messenger.

23. Mar. / Development of the Yeowoonsansoft Program Wizard.

29. Apr. / Yeowoonsansoft changed its name to YSoft.

21. Oct. / Development of the Backdoor Tracker.

10. Dec. / Development of the Y++ language and interpreter.

2005

19. Feb. / Development of the YSoft Chat.

01. Mar. / Development of the YSoft Bitmap Viewer.

03. Apr. / Development of the YSoft Telnet Server.

11. Aug. / Development of the YSoft Shell.

15. Aug. / Development of the YSoft Image Viewer for Pocket PC.

02. Oct. / Development of the BL Pad.

2007

21. May. / YSoft changed its name to Paradoxoft.

2010

22. Jan. / Paradoxoft website renewal.